openwrt/target/linux/bcm27xx/patches-5.4/950-0368-ARM-dts-bcm2838-rpi-4-b-Backport-BT-part-from-upstre.patch
Álvaro Fernández Rojas 62b7f5931c bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
2021-02-19 07:17:21 +01:00

28 lines
944 B
Diff

From 10430ccee66023c26c90cdbc0d6381b41dcecfb7 Mon Sep 17 00:00:00 2001
From: Stefan Wahren <wahrenst@gmx.net>
Date: Wed, 25 Dec 2019 15:43:41 +0100
Subject: [PATCH] ARM: dts: bcm2838-rpi-4-b: Backport BT part from
upstream
The CYW43455 on the Raspberry Pi 4 doesn't use an external pin as lower
power clock anymore. So drop the GPIO clock from pinctrl. While we are at
this add the missing declaration of hardware flow control.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
arch/arm/boot/dts/bcm2838-rpi-4-b.dts | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/arm/boot/dts/bcm2838-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2838-rpi-4-b.dts
@@ -101,7 +101,8 @@
/* uart0 communicates with the BT module */
&uart0 {
pinctrl-names = "default";
- pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
+ pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32>;
+ uart-has-rtscts;
status = "okay";
bluetooth {